Security advisory

{
  "id": "5edc2864c98f429b4fcb71a4ef3bbed68f6501aa93a19fecabe17c134e01fcae",
  "url": "https://osv.dev/vulnerability/CVE-2018-7206",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-7206",
    "summary": "An issue was discovered in Project Jupyter JupyterHub OAuthenticator 0.6.x before 0.6.2 and 0.7.x before 0.7.3. When using JupyterHub with GitLab group whitelisting for access control, group membership was not checked correctly, allowing members not in the whitelisted groups to create accounts on the Hub. (Users were not allowed to access other users' accounts, but could create their own accounts on the Hub linked to their GitLab account. GitLab authentication not using gitlab_group_whitelist is unaffected. No other Authenticators are affected.)",
    "evidence": "osv:CVE-2018-7206",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-7206",
      "aliases": [
        "CVE-2018-7206",
        "GHSA-8x3m-m3x9-54fj",
        "PYSEC-2018-68"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jupyterhub/oauthenticator",
              "type": "GIT",
              "events": [
                {
                  "introduced": "160fe13b7b72ca006b94becb635c365f298b099e"
                },
                {
                  "last_affected": "044e8fd3654dfc3e6f23e63807ead1c0781ee3c2"
                },
                {
                  "fixed": "1845c0e4b1bff3462c91c3108c85205acd3c75a2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jupyter:oauthenticator:0.6.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.6.0"
                      },
                      {
                        "last_affected": "0.6.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:jupyter:oauthenticator:0.6.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.6.1"
                      },
                      {
                        "last_affected": "0.6.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:jupyter:oauthenticator:0.7.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.7.0"
                      },
                      {
                        "last_affected": "0.7.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:jupyter:oauthenticator:0.7.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.7.1"
                      },
                      {
                        "last_affected": "0.7.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:jupyter:oauthenticator:0.7.2:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.7.2"
                      },
                      {
                        "last_affected": "0.7.2"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "1845c0e4b1bff3462c91c3108c85205acd3c75a2"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.6.0",
            "0.6.1",
            "0.7.0",
            "0.7.1",
            "0.7.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-7206.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:57.149913655Z",
      "provider": "osv",
      "references": [
        "https://blog.jupyter.org/security-fix-for-jupyterhub-gitlab-oauthenticator-7b14571d1f76",
        "https://github.com/jupyterhub/oauthenticator/blob/8499dc2/CHANGELOG.md#073---2018-02-16",
        "https://github.com/jupyterhub/oauthenticator/commit/1845c0e4b1bff3462c91c3108c85205acd3c75a2"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-7206",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381024,
  "published_at": "2018-02-18T03:29:00.353+00:00"
}